а) 5 1/12 - 1 5/6x = 3 17/24
61/12 - 11/6х = 89/24
122 - 44х = 89
-44х = 89 - 122
-44х = -33
х= 3/4 .
б) 3 1/3 :(3/7x-11/15)=1 8/17
10/3 : 45х-77 / 105 = 25/17
10 × 35 / 45х - 77 = 25/77
238 = 45х - 77
-45х = -77-238
-45х= -315
х= 7.
Пошаговое объяснение:
А)
5. 1/12 - 1. 5/6х = 3. 17/24
1. 5/6х = 5. 1/12 - 3. 17/24
1. 5/6х = 5. 2/24 - 3. 17/24
1. 5/6х = 4. 26/24 - 3. 17/24
1. 5/6х = 1. 9/24
х = 1. 9/24 : 1. 5/6
х = 33/24 : 11/6
х = 33/24 * 6/11
х = 3/4 * 1/1
х = 3/4
Б)
3. 1/3 : (3/7х - 11/15) = 1. 8/17
3/7х - 11/15 = 3. 1/3 : 1. 8/17
3/7х - 11/15 = 10/3 : 25/17
3/7х - 11/15 = 10/3 * 17/25
3/7х - 11/15 = 2/3 * 17/5
3/7х - 11/15 = 34/15
3/7х = 34/15 + 11/15
3/7х = 45/15
3/7х = 3
х = 3 : 3/7
х = 3 * 7/3
х = 21/3
х = 7
а) 5 1/12 - 1 5/6x = 3 17/24
61/12 - 11/6х = 89/24
122 - 44х = 89
-44х = 89 - 122
-44х = -33
х= 3/4 .
б) 3 1/3 :(3/7x-11/15)=1 8/17
10/3 : 45х-77 / 105 = 25/17
10 × 35 / 45х - 77 = 25/77
238 = 45х - 77
-45х = -77-238
-45х= -315
х= 7.
Пошаговое объяснение:
А)
5. 1/12 - 1. 5/6х = 3. 17/24
1. 5/6х = 5. 1/12 - 3. 17/24
1. 5/6х = 5. 2/24 - 3. 17/24
1. 5/6х = 4. 26/24 - 3. 17/24
1. 5/6х = 1. 9/24
х = 1. 9/24 : 1. 5/6
х = 33/24 : 11/6
х = 33/24 * 6/11
х = 3/4 * 1/1
х = 3/4
Б)
3. 1/3 : (3/7х - 11/15) = 1. 8/17
3/7х - 11/15 = 3. 1/3 : 1. 8/17
3/7х - 11/15 = 10/3 : 25/17
3/7х - 11/15 = 10/3 * 17/25
3/7х - 11/15 = 2/3 * 17/5
3/7х - 11/15 = 34/15
3/7х = 34/15 + 11/15
3/7х = 45/15
3/7х = 3
х = 3 : 3/7
х = 3 * 7/3
х = 21/3
х = 7